Wolframhexachlorid

Bezeichnung:Wolframhexachlorid

CAS-Nr13283-01-7

Englisch Name:Tungsten(VI) Chloride

CBNumberCB5717686

SummenformelCl6W

Molgewicht396.56

MOL-Datei13283-01-7.mol

Synonyma

Wolframhexachlorid

Wolframhexachlorid physikalisch-chemischer Eigenschaften

Schmelzpunkt	275 °C(lit.)
Siedepunkt	347 °C(lit.)
Dichte	3.52 g/mL at 25 °C(lit.)
Dampfdruck	43 mm Hg ( 215 °C)
Flammpunkt	346°C
Löslichkeit	Soluble in carbon disulfide, carbon tetrachloride and phosphorus oxychloride.
Aggregatzustand	powder
Farbe	Gray to dark gray-blue
Wasserlöslichkeit	soluble organic solvents such as ethanol [HAW93]
Sensitive	Moisture Sensitive
Expositionsgrenzwerte	ACGIH: TWA 3 mg/m3 NIOSH: TWA 5 mg/m3; TWA 1 mg/m3; STEL 10 mg/m3; STEL 3 mg/m3
InChI	InChI=1S/6ClH.W/h6*1H;/q;;;;;;+6/p-6
InChIKey	KPGXUAIFQMJJFB-UHFFFAOYSA-H
SMILES	[W](Cl)(Cl)(Cl)(Cl)(Cl)Cl
CAS Datenbank	13283-01-7(CAS DataBase Reference)
EPA chemische Informationen	Tungsten chloride (WCl6), (OC-6-11)- (13283-01-7)

Sicherheit

Kennzeichnung gefährlicher	C
R-Sätze:	34-29-22
S-Sätze:	26-36/37/39-45-8
RIDADR	UN 3260 8/PG 2
WGK Germany	3
RTECS-Nr.	YO7710000
F	1-10-16
TSCA	Yes
HazardClass	8
PackingGroup	II
HS Code	28273990

Gefahreninformationscode (GHS)

Tungsten(VI) Chloride Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R34:Verursacht Verätzungen.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
Beschreibung
Tungsten(VI) chloride, WCl6, is a dark violet blue species that exists as a volatile solid under standard conditions. It is an important starting reagent in the preparation of tungsten compounds. As a d0 ion, W(VI) forms diamagnetic derivatives. WCl6 is octahedral with equivalent W-Cl distances of 2.24-2.26 ? .
Chemische Eigenschaften
dark grey-violet crystalline powder. Tungsten(VI) chloride is a blue-black solid at room temperature. At lower temperatures, it turns into wine red. A red form of the compound can be formed by quickly condensing its vapor, which transforms to the blue-black form on gentle heating. It is easily hydrolyzed, even by moist air, giving the orange oxychlorides WOCl4 and WO2Cl2, and then, tungsten trioxide. WCl6 is soluble in carbon disulfide, carbon tetrachloride, and phosphorus oxychloride. Methylation with trimethylaluminum forms hexamethyl tungsten.
Verwenden
A precursor to tungsten based carbenes.
Verwenden
Precursor to tungsten-based carbenes which catalyze the olefin metathesis reactions of 1- and 2-octene.
Verwenden
It is a precursor for many tungsten compounds. It is used in tungsten plating, purification of tungsten, and olefin polymerization. It is also used as petroleum catalyst, and in intelligent glass. It can be used for deoxygenation of epoxides and as a reagent in organic synthesis.
synthetische
WCl6 can be prepared by chlorinating tungsten metal in a sealed tube at 600℃.
W +3Cl2→WCl6
Definition
ChEBI: Tungsten hexachloride is a tungsten coordination entity.
Reaktionen
The tungsten reagents were prepared from tungsten hexachloride (Tungsten(VI) Chloride) in three ways: (i) with butyllithium; (ii) with a lithium dispersion; and (iii) with lithium iodide. In each case the ratio of WCl6 to lithium reagent is important.
Flammability and Explosibility
Not classified
läuterung methode
Sublime it in a stream of Cl2 in a high temperature furnace and collect it in a receiver cooled in a Dry Ice-acetone bath in an inert atmosphere because it is sensitive to moisture. It is soluble in CS2, CCl4, CHCl3, POCl3, *C6H6, pet ether and Me2CO. Its solutions decompose on standing. Good crystals can be obtained by heating WCl6 in CCl4 to 100o in a sealed tube, followed by slow cooling (tablets of four-sided prisms). Store it in a desiccator over H2SO4 in the dark. [Leitzke & Holt Inorg Synth III 163 1950, Parterfield & Tyree Inorg Synth IX 133 1967, Hein & Herzog in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol II p 1420 1965.]

Tungsten(VI) Chloride Upstream-Materialien And Downstream Produkte

Wolframhexachlorid Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

13283-01-7, Tungsten(VI) Chloride Verwandte Suche:

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